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Anion substitution of nitrate-saturated layered double hydroxide of Mg and Al
AbstractIn the context of producing industrial-grade hydrotalcite-like (HT) materials containing phosphate and sulfate for use as slow-release fertilizers, the ease with which nitrate-HT can be converted to phosphate-HT and sulfate-HT has been examined. Graded amounts of di-ammonium hydrogen phosphate and ammonium sulfate were added to nitrate-HT, while maintaining pH at 9.5, to produce substitutions ranging from approximately 50% to 100%. Chemical and X-ray diffraction analysis of the products confirmed that the substitution could be easily effected by simple topotactic exchange.
Anion substitution of nitrate-saturated layered double hydroxide of Mg and Al
AbstractIn the context of producing industrial-grade hydrotalcite-like (HT) materials containing phosphate and sulfate for use as slow-release fertilizers, the ease with which nitrate-HT can be converted to phosphate-HT and sulfate-HT has been examined. Graded amounts of di-ammonium hydrogen phosphate and ammonium sulfate were added to nitrate-HT, while maintaining pH at 9.5, to produce substitutions ranging from approximately 50% to 100%. Chemical and X-ray diffraction analysis of the products confirmed that the substitution could be easily effected by simple topotactic exchange.
Anion substitution of nitrate-saturated layered double hydroxide of Mg and Al
Gillman, G.P. (author) / Noble, M.A. (author) / Raven, M.D. (author)
Applied Clay Science ; 38 ; 179-186
2007-03-15
8 pages
Article (Journal)
Electronic Resource
English
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